Wittman Buttercup, on wheel skis. The owner uses it to fly north and go ice fishing. Our resident aerodynamicist was intrigued by its unusual wingtips.
In Case You Missed It
Engine Theory: Engine Cooling-Avoiding Meltdown
Understanding the differences between air- and water-cooled engines.
More Than a Science Project
The folks at Sonex have been busy with recent first flights of both their battery-powered E-Flyer and the single-place, folding-wing Onex.
